CHANGE IN SOIL STRUCTURE DUE TO FREEZE-THAW AND REPEATED LOADING

Although the boundary conditions are different, soils subjected to freeze-thaw or repeated loading may exhibit changes in structure that can be indirectly identified by the soils stress-strain characteristics. The objective is to use this concept to help explain the differences in strength and deformation observed when soils are conditioned with either freeze-thaw or repeated loading or both. The strength and deformation characteristics are obtained from isotropic, consolidated, undrained triaxial tests on Manchester silt and Elo clay. Four series of tests were performed: (a) unconditioned followed by monotonic loading to failure, (b) conditioned with a single cycle of freeze-thaw before monotonic loading to failure, (c) conditioned with 600 cycles of a repeated load before monotonic loading, and (d) conditioned with a freeze-thaw cycle and repeated loading before monotonic loading to failure. Results show that freeze-thaw or repeated-load conditioning causes a strength increase, but freeze-thaw followed by repeated loading causes a strength decrease when compared with unconditioned soil. The results are explained in terms of changes in structure caused by the various conditioning phases. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/918/918-003.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=CHANGE+IN+SOIL+STRUCTURE+DUE+TO+FREEZE-THAW+AND+REPEATED+LOADING&author=B.+Alkire&author=J.+Morrison&publication_year=1983
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030903561
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Frost Action. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Alkire, Bernard D
  • Morrison, James M
• Conference:
  • 62nd Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1983-1-17 to 1983-1-21
• Publication Date: 1983

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 15-22
• Monograph Title: FROST ACTION ON TRANSPORTATION FACILITIES
• Serial:
  • Transportation Research Record
  • Issue Number: 918
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accelerated tests; Clay; Consolidations; Deformation; Deformation curve; Freezing; Isotropic materials; Repeated loads; Silts; Soil structure; Soils; Strength of materials; Thaw; Triaxial shear tests; Undrained shear tests
• Uncontrolled Terms: Change; Freeze thaw cycles; Soil deformation; Undrained tests
• Old TRIS Terms: Isotropic mass
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00381782
• Record Type: Publication
• ISBN: 030903561
• Files: TRIS, TRB
• Created Date: Mar 30 1984 12:00AM